private void ArrangeRadialLines()
{
// update radial lines (ellipses)
int radialLinesIndex = 0;
if ((this.linesVisibility & PolarGridLineVisibility.Radial) == PolarGridLineVisibility.Radial)
{
int count = this.model.radialLines.Count - 1;
for (int i = 1; i < count; i++, radialLinesIndex++)
{
RadCircle circle = this.model.radialLines[i];
Ellipse ellipse = this.GetEllipse(radialLinesIndex);
RadRect rect = circle.Bounds;
Canvas.SetLeft(ellipse, rect.X);
Canvas.SetTop(ellipse, rect.Y);
ellipse.Width = rect.Width;
ellipse.Height = rect.Height;
}
}
// hide not used ellipses
while (radialLinesIndex < this.radialLines.Count)
{
this.radialLines[radialLinesIndex].Visibility = Visibility.Collapsed;
radialLinesIndex++;
}
}
protected override RadRect ArrangeCore(RadRect rect)
{
double radius = rect.Width / 2;
RadPoint center = rect.Center;
double normalizedValue1, normalizedValue2;
var annotationPresenter = this.presenter as PolarAxisPlotBandAnnotation;
NumericalAxisPlotInfo polarPlot1 = this.firstPlotInfo as NumericalAxisPlotInfo;
NumericalAxisPlotInfo polarPlot2 = this.secondPlotInfo as NumericalAxisPlotInfo;
normalizedValue1 = polarPlot1.NormalizedValue;
normalizedValue2 = polarPlot2.NormalizedValue;
if (annotationPresenter != null && annotationPresenter.ClipToPlotArea)
{
if (normalizedValue1 > 1 && normalizedValue2 > 1)
{
// annotation should not be visualized
this.circle1 = new RadCircle();
this.circle2 = new RadCircle();
return(new RadRect());
}
else
{
normalizedValue1 = Math.Min(1, polarPlot1.NormalizedValue);
normalizedValue2 = Math.Min(1, polarPlot2.NormalizedValue);
}
}
this.circle1 = new RadCircle(center, normalizedValue1 * radius);
this.circle2 = new RadCircle(center, normalizedValue2 * radius);
return(rect);
}
protected override RadRect ArrangeCore(RadRect rect)
{
double radius = rect.Width / 2;
RadPoint center = rect.Center;
NumericalAxisPlotInfo polarPlot = this.plotInfo as NumericalAxisPlotInfo;
double pointRadius = polarPlot.NormalizedValue * radius;
this.polarLine = new RadCircle(center, pointRadius);
return(this.polarLine.Bounds);
}
private static Geometry BuildRadialStripe(RadCircle circle, RadCircle previousCircle)
{
DoughnutSegmentData segment = new DoughnutSegmentData()
{
Center = new RadPoint(circle.Center.X + 0.5, circle.Center.Y + 0.5),
Radius1 = circle.Radius + 0.5,
Radius2 = previousCircle.Radius - 0.5,
StartAngle = 0,
SweepAngle = 359.99 // 360 does not render properly
};
if (segment.Radius1 < 0)
{
segment.Radius1 = 0;
}
if (segment.Radius2 < 0)
{
segment.Radius2 = 0;
}
return(DoughnutSegmentRenderer.RenderArc(segment));
}
